Select the "Extras" option, then choose the "Cheat Codes" selection. Enter one of the following codes to activate the corresponding cheat function. If you entered the code correctly, a save icon will appear in the top right corner.

All single player missions with three Janus emblems

Enter "fu11yst0ck3d" as a code to unlock all single player missions and have three Janus emblems in all missions. -From: Garrett Thrailkill

All MI6 Ops and 4 star rating for all mission

Enter "Quimbecile" as a code to unlock all MI6 Ops and get a 4 star rating for all missions. -From: Garrett Thrailkill

Classic Conflict and all multiplayer characters

Enter "pa1ntth3townr3d" as a code to unlock Classic Conflict and all multiplayer characters. -From: Garrett Thrailkill